package com.qnvip.demo.service;

import com.qnvip.demo.model.User;

import java.util.List;

/**
 * @author Eric
 * @date 2025/2/20 9:51
 * @description
 */
public interface UserService {
    List<User> getAllUsers();
    int addUser(User user);
    int updateUser(User user);
    int deleteUser(Long id);
    User getUserById(Long id);
}
